Building covering material



Marcin 21, 1939. l L, H, MATTES k 2,151,220

BUILDING COVERING MATERIAL Filed July 50, 1937 o o o o o o o o o /4 'o o o 0 o O o o o o i o o o o o o o o o o o I l o o o 0 o 0 o C o O o I 1 o o o o o o o o -o o o o o o o o o o o 0 o o i l I l Pvc-3.5, /7 s /7 INVENTOR, 5f /7 /Vfff-J.

ATTORNEYS www Patented Mar. 21, 1939 BUILDING COVEBJNG MATERIAL lLee H. Mattes, South Bend, Ind., assigner to Mastic Asphalt Corporation, Ind., a corporation of Indiana South Bend,

Application July 30, 1937, Serial No. 156,568

3 Claims.

This invention relates to building covering material, and particularly to siding and the like formed of composition board and coated with suitable weatherproong material.

I 5 Building covering material of this type 'has heretofore been conventionally manufactured by simply coating a sheet of composition board of the desired size and shape with a thermo-plastic material, such as bituminous asphalt, and applyl ing granular material, such as grit, to the plastic material, the same being so applied and/or contoured as to present an ornamental appearance, as of brick work, at the coated face. The thermo-plastic material adheres to the face of l the composition board satisfactorily under ordinary conditions; -but the adhesion sometimes proves inadequate under conditions of high telnperatures, as for instance extreme summer heat or radiated heat from various possible external l0 or mechanical sources. Thus under such conditions, the adhesion is broken, and the coating tends to slide downwardly on the face of the composition board. Also, the composition board commonly employed is of the Atype which coml5 prises small particles of cellulose material, with or without a binder, compressed into a compact rigid boardl Such material is subject to peeling, particularly peeling of' a' thin layer adjacent the face which is coated. This is particularly true where water reaches the composition board, as where a combination' of heavy rain and high wind may drive water behind the lower ends of the lowermost covering units on a building. Peeling may also be caused or started by striking an edge of the board. It is, therefore, the primary object of this invention to construct a material of this character in a manner to minimize sliding of the coating a`nd peeling of the board, particularly peeling of a thin layer adja- 0 cent the face of the board.

A further object is to provide a material of this character wherein a plurality of recesses are formed in the coated face of the composition u board into which the coating material'extends.

further object is to provide a material of this character wherein portions of the board are impregnated with the coating material for a substantial portion of the thickness thereof to bond 0 the material of the board.

In the drawing:

Fig. Lis a perspective view of a unit of building covering material.

Pig. 2 is a face view of a unit of composition Il board preparatory to coating.

Fig. 3 is an enlarged fragmentary sectional view of the material.

Referring to the drawing, which illustrates the preferred embodiment of the invention, the numeral I0 designates a unit of building covering 5 material having for its foundation a substantially rectangular sheet of any conventional rigid composition board II of substantial thickness. This board is preferably provided with the shiplap undercut flanges I3 at two adjacent edges, 10 and with the inset ship-lap flanges I4 at the other two edges. One face of the board II has a plurality of spaced recesses or depressions I 5 of substantial depth formed therein by any suitable means. These depressions are preferably l5 narrow-as compared to their depth. The recessed face of the board is then coated with a layer vIII of suitable thermo-plastic water-proofing material which enters the recesses I5 to provide tongues or projections Il imbedded in the 80' board. The portions I8 of board II surrounding recesses I5 are impregnated with the coating material as illustrated by the shaded portions of Fig. 3. Over the plast-lc coating is spread a layer of colored grit I9 which is pressed partially 25 therein to provide a colored protecting surface.

The coated face of the material is suitably processed by any of the methods well known in the art, to give to the same the appearance vof brick Work, as by impressing the grooves 20 80 therein to simulate a mortar joint. If desired, grit of a different color than the main or body layer of grit I9 may be applied in' the grooved portions to further increase the mortar joint simulation.

It will be seen that the provision of recesses l5 in board Il permits the tongues or projections I1 of coating material to be formed at the same time the coating material is applied, said tongues being integral with the coating. 'Ihe recesses 40 are commonly formed by means of impaling members projectingradially from the periphery of a pressure roll, and it will be seen that this tends to provide the recess with roughened walls. These roughened walls facilitate and enhance the normal impregnation of the coating material in the body of the composition board around the opening. T'his serves, consequently, to provide a positive interlock between the coating projections and the composition board. The extent of the impregnation may be readily observed when the material is forcibly intentionally peeled or is transversely severed adjacent one of the recesses. When the board is forcibly and intentionally peeled, which peeling occurs only a subla stantial distance from the coating in this construction', the peel is substantially contoured` and naturally results in the formation of protuberances opposite the tongpes Ilot coating material. Inasmuch as this contoured impregnation FS requires any peelingvwhich is intentionally or ,impregnation I8 of the coating material thus serve to greatly enhance the strength of the composition board with respect to its resistance to splitting and peeling. Also, these features enhance and increase the weather-resisting qualities of the product and minimize possibility of displacement or sliding of the plastic coating on the board.

I claim:

' 1. Building covering material comprising a composition board which is subject to peeling when coated with flexible plastic material, said board having. a plurality of spaced depressions of substantially greater depth than width formed in one face thereof, vand a plastic waterproof coating adhering to said face, portions of said plastic filling said depressions to prevent said peeling.

2. Building covering material comprising a composition board which is subject to delamination when coated with a. exibleV layer of plastic material, said board having a plurality ofxspaced depressions in one face thereof, 'said depressions being of greater depth Vthan width, a coating'of waterproof plastic adhering to said'face and tllling said depressions to-prevent saldfdelamination, said plastic impregnating said board adjacent said recesses. 'v

3. Building covering material comprising a rigid, substantially thick board of compressed comminuted cellulose material which is subject vto delamination when coated with a exible layer l of plastic material, said boardhaving deep nar'- row recesses in one iacethereof, `the walls of said recesses being rough, and a coating of waterproof plastic adhering to said face and filling said depressions to prevent said delamination, said' plastidimpregnating Ysaid board adjacent the walls of said recess.

LEE H. MATI'ES. 

